CVE-2016-4591

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

4.22% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 90.3% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2016-07-22 01:00Z10 YR AGO

Last updated

2024-08-06 00:32Z2 YR AGO

Reserved

2016-05-11

Assigning CNA

apple

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-284Improper Access ControlPillar

Data version

5.1

Document digest

42c7b809eb913e90104b810e0291f57b71073916802e56b849e14f16df560ff3

• lists.apple.comAPPLE-SA-2016-07-18-4http://lists.apple.com/archives/security-announce/2016/Jul/msg00003.htmlvendor-advisoryx_refsource_APPLE
• lists.apple.comAPPLE-SA-2016-07-18-2http://lists.apple.com/archives/security-announce/2016/Jul/msg00001.htmlvendor-advisoryx_refsource_APPLE
• www.securityfocus.com91830http://www.securityfocus.com/bid/91830vdb-entryx_refsource_BID
• support.apple.comhttps://support.apple.com/HT206900x_refsource_CONFIRM
• www.securitytracker.com1036343http://www.securitytracker.com/id/1036343vdb-entryx_refsource_SECTRACK
• packetstormsecurity.comhttp://packetstormsecurity.com/files/138502/WebKitGTK-SOP-Bypass-Information-Disclosure.htmlx_refsource_MISC
• www.securityfocus.com20160825 WebKitGTK+ Security Advisory WSA-2016-0005http://www.securityfocus.com/archive/1/539295/100/0/threadedmailing-listx_refsource_BUGTRAQ
• support.apple.comhttps://support.apple.com/HT206905x_refsource_CONFIRM
• support.apple.comhttps://support.apple.com/HT206902x_refsource_CONFIRM
• lists.apple.comAPPLE-SA-2016-07-18-5http://lists.apple.com/archives/security-announce/2016/Jul/msg00004.htmlvendor-advisoryx_refsource_APPLE